The ruling on wearing a ring around the hand, sold in pharmacies, for the purpose of treatment

Question:
He says: Honorable Shaykh, may Allah grant you success. There are rings in pharmacies that are worn on the hand in the form of bracelets or watches. They are worn for the treatment of certain diseases, such as treating the joints. The reason for this is that they contain a magnet on the inside that affects blood circulation. What is the ruling on wearing them for treatment?

Answer:
By Allah, I do not know about this. Is this a doubtful matter? You know, the ring and the thread used to ward off and lift calamity—that is not permissible. If they claim that it has a special property, that requires proof. It requires medical proof for this matter. Yes. So it cannot be said that it is permissible without qualification, nor can it be said that it is not permissible. Rather, one must verify this and present it to doctors, and obtain a report on it. Yes. Otherwise, the default is prohibition. The default is that a person does not wear the ring to ward off disease. Yes.